Cisco Technology, Inc.

Sverre Huseby

Ragnvald Balch Barth

Dan Peder Eriksen

Bjornar Snoksrud

Johan Ludvig Nielsen

Ragnvald Barth

A telecommunications device includes an electronic memory to store at least a network address and a random number code, and a sound unit to transmit the network address and the random number code via ultrasonic sound waves. The telecommunications device also includes a network interface to communicate via a data network using the network address and a processor to establish a communication session with another device over the data network based upon receipt of a response from the other device via the data network, the response including at least the random number code. The telecommunications device does not establish the communication session with the other device if the random number code is missing from the response or if the random number code in the response does not match the random number code transmitted in the ultrasonic sound waves.

System and associated methodology for detecting same-room presence using ultrasound as an out-of-band channel

System and associated methodology for detecting same room presence using ultrasound as an out-of-band channel

In one embodiment, a method includes receiving ultrasound frequency sweeps in a sound receiving device. Each of the plurality of ultrasound frequency sweeps is centered on one of at least two predetermined frequencies. The method also includes converting the ultrasound frequency sweeps into an ultrasound message based on a central frequency of each of the ultrasound frequency sweeps received, and placing the ultrasound message into a receive buffer. Then at least a network address is extracted from the ultrasound message, and the network address is used to establish a communication session over a data network with a telecommunications device.

System and associated methodology for proximity detection and device association using ultrasound

Growing community of inventors

Lysaker, Norway

Sverre Huseby